Lance; I believe your first one (Ern Lake) is a Carrier jack. What date is on it please?
I'd suggest the " correct one" is also originally carrier equipment. Is it dated 1943?
Richard;
I can't see these really short jacks being original issue to an R.L. Bedford, (However, I can see the QMS issuing them for same)
My two Ern Lake 4 tonners are dated 1940 and 1941. I have seen a few different makes of the same type in cast steel and ally, one of which was a Britool at 4 1/2 ton (if my memory serves me correctly. A U.K. based forum member has told me of them, bearing 1960's dates, on epay.